diff --git a/crt-sh-client-demo/pom.xml b/crt-sh-client-demo/pom.xml
index 39eaea0..364551b 100644
--- a/crt-sh-client-demo/pom.xml
+++ b/crt-sh-client-demo/pom.xml
@@ -97,7 +97,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-checkstyle-plugin</artifactId>
-						<version>3.3.1</version>
+						<version>3.5.0</version>
 						<dependencies>
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
diff --git a/crt-sh-client/pom.xml b/crt-sh-client/pom.xml
index 1e8a089..68debe7 100644
--- a/crt-sh-client/pom.xml
+++ b/crt-sh-client/pom.xml
@@ -457,7 +457,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-checkstyle-plugin</artifactId>
-						<version>3.3.1</version>
+						<version>3.5.0</version>
 						<dependencies>
 							<dependency>
 								<groupId>com.puppycrawl.tools</groupId>
diff --git a/pom.xml b/pom.xml
index 9de0cdb..3efa095 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-checkstyle-plugin</artifactId>
-						<version>3.3.1</version>
+						<version>3.5.0</version>
 						<configuration>
 							<skip>true</skip>
 						</configuration>